TUCSON — It’s almost kickoff time, and already a night game here with the 6 p.m. local start and the sun over the horizon. It’s a clear sky, the air crisp at 66 degrees and getting crisper by the minute. It is expected to be in the low 50s by the time the game ends.

USC is looking to avenge last year’s Arizona victory — although that tact hasn’t worked against either Washington or Oregon so far this year.

The Trojans will have to stop Arizona’s prolific offense, and its efficient QB Nick Foles who has completed 72 percent of his passes. The Trojans should be able to score. The 18th-ranked Wildcats gave up 42 points in a loss to Stanford last week.